根据句意及所给的汉语提示，写出单词。

1. It is the ____ (风俗) for the Chinese to take off their shoes when they get into a hall.

2. I'm a foreigner, so I have some _____ (困难) with Chinese culture.

3. The boys are playing now. How _____ (吵闹的) they are!

4. We should know about the differences between Eastern and Western _____ (文化).

5. The tree has been _____ (死) for about one year, it is impossible to have new leaves.

6. Your words are _____ (有帮助的) to me. Thanks!

7. It is a _____ (传统) that women get married in long white dresses.

8. You always have many new ideas. I think you will have a new _____ (设计).

9. The English Channel _____ (分开) England from France.

10. She may ____ (表达) your thought.

下列关于农业劳动力利用率的理解，正确的是（）。

A.表明农业劳动力利用的效果

B.仅仅从数量上考察农业劳动力的利用

C.是指实际利用的农业劳动力和未利用的农业劳动力的比值

D.反映了一定时期劳动力的利用程度